Weather on December 20
Chula Vista, CA
55 Years of Data
Avg High
66°F
Avg Low
45°F
Warmest
1985
64°F avg
Coldest
1978
47°F avg
About This Date
December 20th in Chula Vista, CA typically brings mild winter weather, with average highs around 66°F and lows near 45°F. Over 54 years of records, the warmest December 20th was in 1985 (64°F average), while the coldest was 1978 (47°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 17% of December 20th dates historically, with the wettest December 20th recording 1.32" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 20th in Chula Vista, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 52° | 59° | — | — |
| 2024 | 62° | 40° | 51° | — | — |
| 2023 | 71° | 54° | 62° | — | — |
| 2022 | 66° | 41° | 54° | — | — |
| 2021 | 65° | 40° | 52° | — | — |
| 2020 | 76° | 45° | 60° | — | — |
| 2019 | 74° | 43° | 58° | — | — |
| 2018 | 70° | 46° | 58° | — | — |
| 2017 | 63° | 44° | 53° | — | — |
| 2016 | 77° | 46° | 62° | — | — |
| 2015 | 63° | 53° | 58° | 0.41" | — |
| 2014 | 66° | 50° | 58° | — | — |
| 2013 | 63° | 43° | 53° | — | — |
| 2012 | 68° | 42° | 55° | — | — |
| 2011 | 64° | 50° | 57° | — | — |
| 2010 | 61° | 59° | 60° | 0.66" | — |
| 2009 | 70° | 47° | 58° | — | — |
| 2008 | 62° | 39° | 51° | — | — |
| 2007 | 64° | 56° | 60° | — | — |
| 2006 | 63° | 39° | 51° | — | — |
| 2005 | 75° | 44° | 60° | — | — |
| 2004 | 70° | 43° | 56° | — | — |
| 2003 | 71° | 46° | 59° | 0.03" | — |
| 2002 | 61° | 47° | 54° | 1.32" | — |
| 2001 | 65° | 39° | 52° | — | — |
| 2000 | 73° | 43° | 58° | — | — |
| 1999 | 77° | 43° | 60° | — | — |
| 1998 | 58° | 52° | 55° | — | — |
| 1997 | 73° | 43° | 58° | — | — |
| 1996 | 67° | 42° | 54° | — | — |
| 1995 | 65° | 47° | 56° | 0.03" | — |
| 1994 | 71° | 43° | 57° | — | — |
| 1993 | 74° | 40° | 57° | — | — |
| 1991 | 69° | 41° | 55° | — | — |
| 1990 | 57° | 48° | 53° | 0.76" | — |
| 1989 | 68° | 48° | 58° | — | — |
| 1988 | 64° | 45° | 54° | — | — |
| 1987 | 65° | 42° | 53° | — | — |
| 1986 | 62° | 51° | 57° | 0.1" | — |
| 1985warmest | 80° | 48° | 64° | — | — |
| 1984 | 61° | 50° | 55° | 0.94" | — |
| 1983 | 65° | 52° | 58° | — | — |
| 1982 | 67° | 39° | 53° | — | — |
| 1981 | 66° | 50° | 58° | — | — |
| 1980 | 61° | 43° | 52° | — | — |
| 1979 | 63° | 46° | 54° | — | — |
| 1978coldest | 56° | 39° | 47° | 0.05" | — |
| 1977 | 64° | 48° | 56° | — | — |
| 1976 | 65° | 47° | 56° | — | — |
| 1975 | 59° | 44° | 52° | — | — |
| 1974 | 63° | 43° | 53° | — | — |
| 1973 | 70° | 44° | 57° | — | — |
| 1972 | 64° | 49° | 56° | — | — |
| 1971 | 60° | 38° | 49° | — | — |
54 years of data from CHULA VISTA